JPH0750680Y2 - Low-medium temperature blackbody furnace - Google Patents
Low-medium temperature blackbody furnaceInfo
- Publication number
- JPH0750680Y2 JPH0750680Y2 JP12266989U JP12266989U JPH0750680Y2 JP H0750680 Y2 JPH0750680 Y2 JP H0750680Y2 JP 12266989 U JP12266989 U JP 12266989U JP 12266989 U JP12266989 U JP 12266989U JP H0750680 Y2 JPH0750680 Y2 JP H0750680Y2
- Authority
- JP
- Japan
- Prior art keywords
- cavity body
- furnace
- low
- heater
- heat receiving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Radiation Pyrometers (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は放射温度計の校正に主として用いる低中温域の
標準黒体炉に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a standard black body furnace in the low to medium temperature range mainly used for calibration of a radiation thermometer.
（従来の技術） 従来の低中温域（50〜450℃）の黒体炉としては主とし
て円筒形のキャビティ体にヒーターを巻き付け及びその
外周に断熱層を設けて構成したものが公知である。(Prior Art) As a conventional low-medium temperature (50 to 450 ° C.) black body furnace, there is known a structure in which a heater is mainly wound around a cylindrical cavity body and a heat insulating layer is provided around the heater.
しかしこれらの従来の黒体炉においてはヒーターの巻き
付け形状及びヒーターの経年変化によりキャビティ体の
温度分布に変化が生じることがあった。However, in these conventional blackbody furnaces, the temperature distribution of the cavity body may change due to the winding shape of the heater and aging of the heater.
又低中温域の黒体炉として他に水や油等の液体を熱媒体
として用いたものが公知である。In addition, as a low-medium temperature black body furnace, a furnace using a liquid such as water or oil as a heat medium is known.
この液体を使用した黒体炉では使用温度領域が狭く使用
温度の上限にも限界があった。The blackbody furnace using this liquid has a narrow operating temperature range and has an upper limit of operating temperature.
一方従来の低中温域の黒体炉として上記黒体炉以外に球
形のキャビティ体でヒーターにより加熱された空気を用
いたものが実開昭59-162633号等で公知である。On the other hand, as a conventional black-body furnace in the low and middle temperature range, in addition to the above-mentioned black-body furnace, a spherical cavity body using air heated by a heater is known in Japanese Utility Model Publication No. 59-162633.
しかしこれらの従来のものはキャビティ体の形状が球形
であるため炉本体が大きくなっていた。However, in these conventional ones, the shape of the cavity body is spherical, so that the furnace body is large.
（考案が解決しようとする課題） 本考案は以上の従来の課題を解決し小型でヒーターの影
響を受けないでキャビティ体内の温度分布を長期間良好
で均一にすることができる低中温域黒体炉の提供を目的
とする。(Problems to be solved by the invention) The present invention solves the above-mentioned conventional problems and is a small-sized black body with a low temperature in the middle of the cavity, which can keep the temperature distribution in the cavity body good and uniform for a long time without being affected by the heater. The purpose is to provide a furnace.
（課題を解決するための手段） 本考案は以上の目的達成のために 1.一端が開口する筒状のキャビティ体と、該キャビティ
体の入口付近の壁材の外面に設けられた受熱溝と、前記
キャビティ体の外周部に設けられた高温空気の循環路と
からなる低中温域黒体炉 2.一端が開口する筒状のキャビティ体と、該キャビティ
体の入口付近の壁材の外面に設けられた受熱溝と、前記
キャビティ体の入口側に設けられた受熱板と、前記キャ
ビティ体の外周部に設けられた高温空気の循環路とから
なる低中温域黒体炉 を提案するものである。(Means for Solving the Problems) In order to achieve the above object, the present invention is: 1. A cylindrical cavity body having one end open, and a heat receiving groove provided on the outer surface of the wall material near the entrance of the cavity body. , A low-medium temperature black body furnace comprising a high temperature air circulation path provided on the outer periphery of the cavity body 2. A cylindrical cavity body with one end open, and an outer surface of the wall material near the inlet of the cavity body A low-intermediate-temperature-range blackbody furnace is proposed that is provided with a heat-receiving groove provided, a heat-receiving plate provided on the inlet side of the cavity body, and a circulation path for high-temperature air provided on the outer peripheral portion of the cavity body. is there.
（作用） （１） 本考案の黒体炉は特にキャビティ体に受熱溝が
設けられるため均一な温度分布特性が得られる。(Operation) (1) Since the black body furnace of the present invention is provided with the heat receiving groove particularly in the cavity body, a uniform temperature distribution characteristic can be obtained.
（２） 本考案の黒体炉は特に高温空気の循環路が設け
られるためヒーターの巻付形状及びヒーターの経年変化
によるキャビティ体の温度分布に変化が生じることなく
長期間に渡って良好な温度分布特性が得られると同時に
ヒーター交換による性能変化がない。(2) Since the blackbody furnace of the present invention is provided with a circulation path for high temperature air, the temperature distribution of the cavity body does not change due to the winding shape of the heater and the aging of the heater, and a good temperature is maintained for a long time. Distribution characteristics are obtained and at the same time there is no change in performance due to heater replacement.
（３） 本考案の黒体炉は特に筒状のキャビティ体を用
いるため小型化が可能になる。(3) Since the black body furnace of the present invention uses the cylindrical cavity body in particular, it can be downsized.
（４） 本考案の黒体炉は特にキャビティ体に受熱板が
設けられた場合にはより均一な温度分布特性が得られ
る。(4) The black body furnace of the present invention can obtain a more uniform temperature distribution characteristic especially when the heat receiving plate is provided in the cavity body.
（実施例） 以下本考案の低中温域黒体炉を図面に示す実施例に従い
説明する。(Embodiment) A low-middle temperature blackbody furnace of the present invention will be described below with reference to an embodiment shown in the drawings.
第１図は本考案の黒体炉を示し、該黒体炉は炉本体
（１）内に設けられ周囲を断熱材（２）により囲まれて
形成された筒状の断熱室（３）を有する。FIG. 1 shows a black body furnace of the present invention. The black body furnace comprises a cylindrical heat insulating chamber (3) which is provided in a furnace body (1) and surrounded by a heat insulating material (2). Have.
該断熱室（３）内には内筒（４）が設けられてその外側
の外路（4a）と内側の内路（4b）を結ぶヒーター（５）
により加熱された高温空気の循環路が形成される。An inner cylinder (4) is provided in the heat insulation chamber (3), and a heater (5) connecting an outer passage (4a) on the outer side and an inner passage (4b) on the inner side.
A circulation path for the heated high temperature air is formed.
一方断熱室（３）内のキャビティ体（８）の後方にはフ
ァン（６）が設けられてヒーター（５）により加熱され
た高温空気の強制循環が図られる。On the other hand, a fan (6) is provided behind the cavity body (8) in the heat insulation chamber (3) to forcibly circulate the hot air heated by the heater (5).
次に断熱室（３）内には第２図に示す様に一端が開口す
る筒状のキャビティ体（８）が設けられる。Next, as shown in FIG. 2, a cylindrical cavity body (8) having one end opened is provided in the heat insulation chamber (3).
該キャビティ体（８）は銅で作られその外面及び内面の
表面にめっきされたニッケルの酸化膜で覆われて更に内
面にのみ黒色塗料を塗布した壁材（９）で形成される。The cavity body (8) is made of copper, and is covered with a nickel oxide film plated on the outer and inner surfaces of the cavity body, and is further formed with a wall material (9) coated with black paint only on the inner surface.
キャビティ体（８）はその入口（12）側に受熱板（20）
及び取付鍔部（13）が設けられ該取付鍔部（13）におい
て炉本体（１）に取り付けられる。The cavity body (8) has a heat receiving plate (20) on its inlet (12) side.
And a mounting flange (13), which is mounted on the furnace body (1) at the mounting flange (13).
一方キャビティ体（８）の入口（12）付近の壁材（９）
の外面には受熱溝（10）が設けられキャビティ体（８）
の入口側がより多くの熱を吸収する構造となっている。On the other hand, the wall material (9) near the entrance (12) of the cavity body (8)
A heat receiving groove (10) is provided on the outer surface of the cavity body (8)
The inlet side has a structure that absorbs more heat.
次に前記断熱室（３）内にはヒーター（５）が設けられ
ている。Next, a heater (5) is provided in the heat insulation chamber (3).
又キャビティ体（８）の入口（12）は入口孔（15）を介
して外気に連通される。The inlet (12) of the cavity body (8) communicates with the outside air through the inlet hole (15).
以上の実施例に示した本考案の低中温域黒体炉の機能は
次の通り。The functions of the low-middle temperature blackbody furnace of the present invention shown in the above embodiment are as follows.
すなわち使用時にはヒーター（５）に通電され及びファ
ン（６）がモーター（７）で回転される。That is, in use, the heater (5) is energized and the fan (6) is rotated by the motor (7).
これによりヒーター（５）により加熱された高温空気が
キャビティ体（８）の外周部の外路（4a）と内路（4b）
を循環しキャビティ体（８）を加熱する。As a result, the high temperature air heated by the heater (5) is supplied to the outer passage (4a) and inner passage (4b) of the outer periphery of the cavity body (8).
To heat the cavity body (8).
これによりキャビティ体（８）は所定の温度にされる。As a result, the cavity body (8) is brought to a predetermined temperature.
ここでキャビティ体（８）の入口（12）の壁材（９）は
外気へと熱が奪われるが受熱溝（10）及び受熱板（20）
があるため入口側の熱の吸収もよくそれらはバランスし
良好な温度分布特性が得られる。Here, the wall material (9) at the inlet (12) of the cavity body (8) absorbs heat to the outside air, but the heat receiving groove (10) and the heat receiving plate (20).
Therefore, the heat absorption on the inlet side is good and they are well balanced to obtain good temperature distribution characteristics.
従ってキャビティ体（８）の受熱構造のみにより実効放
射率が維持されることになる。Therefore, the effective emissivity is maintained only by the heat receiving structure of the cavity body (8).
（考案の効果） 本考案の黒体炉の実施例は以上の通りでありその効果を
次に列記する。(Effects of the Invention) The embodiments of the blackbody furnace of the present invention are as described above, and the effects are listed below.
（１） 本考案の黒体炉は特にキャビティ体に受熱溝が
設けられるため均一な温度分布特性が得られる。(1) Since the black body furnace of the present invention is provided with the heat receiving groove in the cavity body, a uniform temperature distribution characteristic can be obtained.
（２） 本考案の黒体炉は特に高温空気の循環路が設け
られるためヒーターの巻付形状及びヒーターの経年変化
によるキャビティ体の温度分布に変化が生じることなく
長期間に渡って良好な温度分布特性が得られると同時に
ヒーター交換による性能変化がない。(2) Since the blackbody furnace of the present invention is provided with a circulation path for high temperature air, the temperature distribution of the cavity body does not change due to the winding shape of the heater and the aging of the heater, and a good temperature is maintained for a long time. Distribution characteristics are obtained and at the same time there is no change in performance due to heater replacement.
（３） 本考案の黒体炉は特に筒状のキャビティ体を用
いるため小型化が可能になる。(3) Since the black body furnace of the present invention uses the cylindrical cavity body in particular, it can be downsized.
（４） 本考案の黒体炉は特にキャビティ体に受熱板が
設けられた場合にはより均一な温度分布特性が得られ
る。(4) The black body furnace of the present invention can obtain a more uniform temperature distribution characteristic especially when the heat receiving plate is provided in the cavity body.
第１図は本考案の黒体炉の断面側面図 第２図は同上キャビティ体の縦断面図 1:炉本体、2:断熱材 3:断熱室、4:内筒 4a:外路、4b:内路 5:ヒーター、6:ファン 7:モーター、8:キャビティ体 9:壁材、10:受熱溝 11:キャビティ室、12:入口 13:取付鍔部、14:温度センサー用孔 15:入口孔、20:受熱板 Fig. 1 is a cross-sectional side view of a black body furnace of the present invention. Fig. 2 is a vertical cross-sectional view of the same cavity body as above. Inner path 5: Heater, 6: Fan 7: Motor, 8: Cavity body 9: Wall material, 10: Heat receiving groove 11: Cavity chamber, 12: Inlet 13: Mounting flange, 14: Temperature sensor hole 15: Inlet hole , 20: Heat receiving plate
Claims (2)
キャビティ体の入口付近の壁材の外面に設けられた受熱
溝と、前記キャビティ体の外周部に設けられた高温空気
の循環路とからなる低中温域黒体炉。1. A cylindrical cavity body having an opening at one end, a heat receiving groove provided on an outer surface of a wall material near an inlet of the cavity body, and a circulation path for high-temperature air provided on an outer peripheral portion of the cavity body. A low-medium temperature blackbody furnace consisting of.
キャビティ体の入口付近の壁材の外面に設けられた受熱
溝と、前記キャビティ体の入口側に設けられた受熱板
と、前記キャビティ体の外周部に設けられた高温空気の
循環路とからなる低中温域黒体炉。2. A cylindrical cavity body having an opening at one end, a heat receiving groove provided on an outer surface of a wall material near an inlet of the cavity body, a heat receiving plate provided on an inlet side of the cavity body, A low-medium temperature region blackbody furnace consisting of a high-temperature air circulation path provided on the outer periphery of the cavity body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12266989U JPH0750680Y2 (en) | 1989-10-19 | 1989-10-19 | Low-medium temperature blackbody furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12266989U JPH0750680Y2 (en) | 1989-10-19 | 1989-10-19 | Low-medium temperature blackbody furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0361537U JPH0361537U (en) | 1991-06-17 |
| JPH0750680Y2 true JPH0750680Y2 (en) | 1995-11-15 |
Family
ID=31670661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12266989U Expired - Lifetime JPH0750680Y2 (en) | 1989-10-19 | 1989-10-19 | Low-medium temperature blackbody furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750680Y2 (en) |
-
1989
- 1989-10-19 JP JP12266989U patent/JPH0750680Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0361537U (en) | 1991-06-17 |
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